Cat. No. H113-E1-03B E5ZN. Temperature Controller OPERATION MANUAL

Transcription

1 Cat. No. H113-E1-03B E5ZN Temperature Controller OPERATION MANUAL

2 E5ZN Temperature Controller Operation Manual Revised November 2005

3 Notice: OMRON products are manufactured for use according to proper procedures by a qualified operator and only for the purposes described in this manual. The following conventions are used to indicate and classify precautions in this manual. Always heed the information provided with them. Failure to heed precautions can result in injury to people or damage to property.!danger!warning!caution Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury, or property damage. Visual Aids The following headings appear in the left column of the manual to help you locate different types of information. Note Indicates information of particular interest for efficient and convenient operation of the product. 1,2, Indicates lists of one sort or another, such as procedures, checklists, etc. OMRON, 2001 All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form, or by any means, mechanical, electronic, photocopying, recording, or otherwise, without the prior written permission of OMRON. No patent liability is assumed with respect to the use of the information contained herein. Moreover, because OMRON is constantly striving to improve its high-quality products, the information contained in this manual is subject to change without notice. Every precaution has been taken in the preparation of this manual. Nevertheless, OMRON assumes no responsibility for errors or omissions. Neither is any liability assumed for damages resulting from the use of the information contained in this publication. v

4 Abbreviations The following table lists the main abbreviations used in parameters, diagrams, and in the text itself. Abbreviation Meaning PV Process value SP Set point AT Autotuning EU Engineering units (See note.) ch Channel Parameter Notation Note Scaled data is expressed in C, m, g, and other engineering units. EU is used as the minimum unit for engineering units For example, the smallest unit of (m) is 0.01 (m) and 0.01 is thus one EU. The following table shows the alphabet notation used for parameter abbreviations and settings displayed on the E5ZN-SDL Setting Display Unit. a b c d e f g h i j k l m A B C D E F G H I J K L M n o p q r s t u U w x y = N O P Q R S T U V W X Y Z vi

5 TABLE OF CONTENTS PRECAUTIONS xiii 1 Intended Audience xiv 2 General Precautions xiv 3 Application Precautions xiv SECTION 1 Outline Name and Function of Parts I/O Configuration and Main Functions SECTION 2 Preparations Installation Using the I/O Section Installation Precautions SECTION 3 Temperature Control Settings Setting the Input Type Selecting Centigrade/Fahrenheit Selecting PID Control or ON/OFF Control Setting Output Specifications Setting the SP Executing ON/OFF Control Determining PID Constants: Autotuning and Manual Setup Alarm Outputs Using Heater Burnout Alarm (HBA) Starting and Stopping Control Operating Precautions SECTION 4 Settings Used Only when Required Shifting Input Values Alarm Hysteresis Setting Scaling Upper and Lower Limits (Analog Input) Executing Heating and Cooling Control Using the Event Input Setting the SP Upper and Lower Limit Range SP Ramp Function: Limiting SP Change Rate Key Protection Manual Mode Reading Temperatures for Multiple E5ZN Units Remote PV Mode Using Transfer Output vii

6 TABLE OF CONTENTS SECTION 5 Communications Communication Protocols Data Format Structure Structure of Command/Response Text Variable Area Read from Variable Area Write to Variable Area Operation Commands Setting Areas Commands and Responses Variable Area Map SECTION 6 Using the E5ZN-SDL Introduction Names of Parts on the Front Panel Setup Level Configuration and Front Panel Keys Initial Setup Examples Using Copy Mode List of Parameters SECTION 7 Parameters Conventions Used in this Chapter Protect Level Operation Level Adjustment Level Initial Setting Level Advanced Function Setting Level Communications Setting Level SECTION 8 Troubleshooting Troubleshooting Procedure Communications Errors Temperature Sensing Errors Temperature Control Errors Output Errors HB Alarm Errors Key Operations Not Functioning Error Displays viii

7 Appendices TABLE OF CONTENTS A Specifications B Sensor Input Setting Ranges/Control Ranges C ASCII Table Index Revision History ix

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9 About this Manual: This manual describes how to use the E5ZN and includes the sections described below. Before using your E5ZN, thoroughly read and understand this manual in order to ensure correct use. Also, store this manual in a safe place so that it can be accessed whenever necessary. In this manual, current output models (E5ZN-2C@F03@-FLK) are referred to as analog output models, and voltage output models (E5ZN-2Q@H03@-FLK) and transistor output models (E5ZN- 2T@H03@-FLK) are referred to as pulse output models. There are now pulse output models that support new functions. The new models are called upgraded pulse output models when describing the functions added to these models. (Contact your OMRON sales representative if you are not sure about the functions supported by your E5ZN Temperature Controller.) The E5ZN Temperature Controller allows the user to perform the following: Control temperature for two channels with one Temperature Controller. The Temperature Controller can be expanded to control up to 32 channels. Use an E5ZN-SDL Setting Display Unit to set the Temperature Controller. Input infrared temperature sensors, analog voltages, thermocouples, or platinum-resistance thermometers. Select heating/cooling control in addition to standard control. Select autotuning as the tuning function. Use multi-sp and a RUN/STOP function with event inputs. Use a HBA (heater burnout alarm). Use communications. The E5ZN conforms to UL/CSA/IEC safety standards and EMC standards. Precautions provides general precautions for using the E5ZN. Section 1 describes E5ZN features, part names, and main functions. Section 2 describes mounting, wiring, and other preparatory work that must be done before the E5ZN can be used. Section 3 describes the basic settings required by the E5ZN. Section 4 describes scaling, SP ramp, and other functions to enable maximum use of the E5ZN functions. Section 5 describes performing communications for the E5ZN. Section 6 describes how to operate the E5ZN-SDL Setting Display Unit. Section 7 describes the parameters used to control E5ZN operation. Section 8 classifies problems by situation and describes the methods for checking any possible malfunctions.!warning Failure to read and understand the information provided in this manual may result in personal injury or death, damage to the Temperature Controller, or product failure. Please read each section in its entirety and be sure you understand the information provided in the section and related sections before attempting any of the procedures or operations given. xi

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11 PRECAUTIONS This section provides general precautions for using the E5ZN Temperature Controller. The information contained in this section is important for the safe and reliable application of the Temperature Controller. You must read this section and understand the information contained before attempting to set up or operate an Temperature Controller. 1 Intended Audience xiv 2 General Precautions xiv 3 Application Precautions xiv xiii

12 Intended Audience 1 1 Intended Audience 2 General Precautions This manual is intended for the following personnel, who must also have knowledge of electrical systems (an electrical engineer or the equivalent). Personnel in charge of installing automation systems. Personnel in charge of designing automation systems. Personnel in charge of managing automation systems and facilities. The user must operate the Temperature Controller according to the performance specifications described in the operation manuals. Before using the Temperature Controller under conditions which are not described in the manual or applying the Temperature Controller to nuclear control systems, railroad systems, aviation systems, vehicles, combustion systems, medical equipment, amusement machines, safety equipment, and other systems, machines, and equipment that may have a serious influence on lives and property if used improperly, consult your OMRON representative. Make sure that the ratings and performance characteristics of the Temperature Controller are sufficient for the systems, machines, and equipment, and be sure to provide the systems, machines, and equipment with double safety mechanisms. This manual provides information for installing and operating OMRON Temperature Controllers. Be sure to read this manual before operation and keep this manual close at hand for reference during operation.!warning It is extremely important that a Temperature Controller be used for the specified purpose and under the specified conditions, especially in applications that can directly or indirectly affect human life. You must consult with your OMRON representative before applying a Temperature Controller to the above mentioned applications. 3 Application Precautions!WARNING Do not touch the terminals while the power is ON. Doing so may cause an electric shock.!warning It may be necessary to install a power supply breaker to turn OFF the power supply before working on the Temperature Controller. Not turning OFF the power supply may result in electrical shock.!warning Do not allow metal fragments or lead wire scraps to fall inside this Temperature Controller. These may cause electric shock, fire, or malfunction.!warning Do not use the Temperature Controller in flammable and explosive gas atmospheres. There is danger of explosion.!warning Never disassemble, repair, or modify the Temperature Controller. Doing so may cause electric shock, fire or malfunction.!caution Set all settings according to the control target of the Temperature Controller. If the settings are not appropriate for the control target, the Temperature Controller may operate in an unexpected manner, resulting in damage to the Temperature Controller or resulting in accidents. xiv

13 Application Precautions 3!Caution Tighten the terminal screws properly. Tighten them to a torque of 0.40 to 0.56 N m.!warning To maintain safety in the event of a Temperature Controller malfunction, always take appropriate safety measures, such as installing an alarm on a separate line to prevent excessive temperature rise. If a malfunction prevents proper control, a major accident may result. Observe the following precautions when using the Temperature Controller. Use and store the Temperature Controller within the specified temperature and humidity ranges. If there is a possibility of the ambient temperature rising to a temperature above the specified temperature range, take steps, such as installing fans, to cool the E5ZN. If the Temperature Controller is installed incorrectly, heat will build up inside, shortening the life of the Temperature Controller. If heat buildup is a problem, use forced cooling, e.g., install a cooling fan. Do not touch the patterns or components on a board with your bare hands. Hold it by the case. To allow heat to escape, do not block the area around the Temperature Controller. (Ensure that enough space is left for the heat to escape.) Do not block the ventilation holes on the casing. Use the Temperature Controller within the specified power supply voltage and rated load ranges. Wire properly using the correct terminal polarity. Use the specified size of solderless terminals for wiring (M3, width 5.8 mm or less). Use the specified wire sizes for wiring. Power supply terminals: AWG22 to AWG14 (cross-sectional area of to mm 2 ), Other terminals: AWG28 to AWG16 (cross-sectional area of to mm 2 ), Length of exposed wire: 6 to 8 mm. Do not wire unused terminals. Make sure that the rated voltage is reached within 2 seconds after the power supply is turned ON. Allow a warmup period of 30 minutes. Attach a surge suppressor or noise filter to peripheral devices that generate noise (in particular, motors, transformers, solenoids, magnetic coils or other equipment that have an inductance component). When mounting a noise filter on the power supply, be sure to first check the filter's voltage and current capacity, and then mount the filter as close as possible to the E5CN. Allow as much space as possible between the Temperature Controller and devices that generate powerful high-frequency noise (e.g., high-frequency welders, high-frequency sewing machines) or surges. To reduce induction noise, separate the high-voltage or large-current power lines from other lines, and avoid parallel or common wiring with the power lines when you are wiring to the terminals. We recommend using separating pipes, ducts, or shielded lines. Install a switch or circuit breaker in a location easily accessible to the operator and label it appropriately. Do not use this Temperature Controller in the following places: Places subject to dust or corrosive gases (in particular, sulfide gas and ammonia gas) Places subject to high humidity, condensation or freezing Places subject to direct sunlight xv

14 Application Precautions 3 Places subject to vibration and large shocks Places subject to splashing liquid or oily atmosphere Places directly subject to heat radiated from heating equipment Places subject to intense temperature changes Cleaning: Do not use paint thinner or the equivalent. Use standard grade alcohol to clean the Temperature Controller. Install DIN track vertically. When mounting the Terminal Unit to the Temperature Controller, make sure that the hooks on the Temperature Controller are inserted properly into the Terminal Unit. Remove the dust sticker from the Temperature Controller after completing wiring to enable heat radiation. When you draw out the internal mechanism from the housing, never touch electric components inside or subject the internal mechanism to shock. xvi

15 SECTION 1 Outline 1-1 Name and Function of Parts External Appearance Front Panel Names Display Setting Switches I/O Configuration and Main Functions I/O Configuration Main Functions

16 Name and Function of Parts Section Name and Function of Parts External Appearance The E5ZN Temperature Controller can be mounted inside another device. RS-485 communications is a standard feature with the E5ZN, allowing monitoring of PVs and reading/writing parameters from the host. The Terminal Unit and the Temperature Controller Module can be separated, making wiring and maintenance of the E5ZN easier. Space and wiring can be reduced by using an Expansion Terminal Unit when connecting two or more E5ZN Controllers to the same host. Basic Controller Expansion Controller Terminal Unit Front Panel E5ZN Controller Module Front Panel Names 89ABCDE F Unit number switch Baud rate switch Operation indicators (LED) 2

17 Name and Function of Parts Section Display Operation Display 1,2, POWER Lit when power is ON. 2. ERROR Flashes when a memory error or an input error to either channel has occurred. 3. SD/RD (send data/receive data) Flashes during communications with the host computer. 4. OUT1, OUT2 (control output 1, control output 2) Lit when control output 1 or 2 is ON. 5. SUB1, SUB2 (auxiliary output 1, auxiliary output 2) Lit when auxiliary outputs 1 or 2 is ON. Note Setting Switches There is no display on the front panel for SUB3 and SUB4 (auxiliary output 3 and auxiliary output 4) of analog output models. Use the switches to change the communications conditions for communications with the host computer. Before using the E5ZN, match the settings to the host. Operate the switches under the following conditions only. The power supply must be turned OFF. The settings will be enabled only when the power is turned ON again. To change the switch setting, use a flat-blade screwdriver and turn the switch to the required position. Unit Number Baud Rate A unit number is set for each Temperature Controller to identify the Temperature Controllers connected to the host and to an E5ZN-SDL Setting Display Unit. The unit number is set in hexadecimal. The switch settings are 0 to F, which correspond to unit numbers 00 to 15. Setting A B C D E F Unit No Default Set a different unit number for each Temperature Controller when more than one E5ZN Temperature Controller is connected for RS-485 communications. Communications cannot be performed if the same unit number is used more than once in one system. Match the E5ZN Temperature Controller baud rate to the host baud rate. Setting Baud rate Do not use these settings. (bit/s) Default 3

18 I/O Configuration and Main Functions Section I/O Configuration and Main Functions I/O Configuration Pulse Output Models Analog Output Models Control ch1 Temperature input/ analog input CT input Controller Heating control output Cooling control output OR of Alarm 1 and HBA Control output 1 Aux. output 1 Control ch 1 Temperature input/analog input Controller Heating control output Cooling Control output 1 control output OR of Alarm 1 and Input Error Aux. output 1 Alarm 2 Alarm 3 Alarm 2 SP transfer output Alarm 3 Ramp SP transfer output PV transfer output Aux. output 3 Control ch2 Temperature input/ analog input CT input Heating Control output Cooling Control output OR of Alarm 1 and HBA Control output 2 Aux. output 2 Control ch 2 Temperature input/ analog input Heating MV transfer output Cooling MV transfer output Heating control output Cooling control output OR of Alarm 1 and Input Error Control output 2 Aux. output 2 Alarm 2 Alarm 2 Alarm 3 Communications Alarm 3 Communications SP transfer output Ramp SP transfer output PV transfer output Aux. output 4 Event input (one) Event input (one) Heating MV transfer output Cooling MV transfer output Default Note Refer to Output Allocations on page 26 for the combinations of functions that can be allocated to the control and auxiliary outputs. 4

19 I/O Configuration and Main Functions Section Main Functions Communications Functions Number of Control Points Input Sensor Types Control Output Alarms Control Adjustment Event Input HBA Note Communications according to CompoWay/F (see note) are supported and are performed through the RS-485 interface. Up to 16 E5ZN Temperature Controllers can be operated from the host. CompoWay/F is a general-purpose serial communications-based unified communications protocol developed by OMRON. CompoWay/F uses commands compatible with the well-established FINS, together with a unified frame format on OMRON programmable Controllers to facilitate communications between personal computers and components. One E5ZN Temperature Controller has two channels for controlling temperature. The following input sensors can be connected for temperature input. Both channels will use the same type of sensor. Thermocouple: K, J, T, E, L, U, N, R, S, B Infrared temperature sensor type: ES1A K (10 to 70 C), K (60 to 120 C), K (115 to 165 C), K (160 to 260 C) Platinum-resistance thermometer: Pt100, JPt100 Analog input: 0 to 50 mv The control output depends on the model as follows: Voltage output models (E5ZN-2Q@H03@-FLK): Pulse voltage output Transistor output models (E5ZN-2T@H03@-FLK): Transistor output (open collector) Current output models (E5ZN-2C@F03@-FLK): Linear current output Set the alarm type and alarm value, or set upper- and lower-limit alarms. If necessary, a more comprehensive alarm function can be achieved by setting the standby sequence, alarm hysteresis, and close in alarm/ open in alarm parameters. Optimum PID constants can be set easily by autotuning. The following functions can be achieved using the event input (one input per Temperature Controller): SP selection (multi-sp, 2 points max.) and RUN/STOP. The event input is used by both temperature control channels. A heater burnout alarm (HBA) is supported by pulse output models only. 5

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21 SECTION 2 Preparations 2-1 Installation External Dimensions Assembling Units Using the I/O Section Terminal Arrangement Precautions when Wiring Wiring Installation Precautions Ensuring Prolonged Use Reducing the Influence of Noise Ensuring Precise Measurements Enclosure Ratings

22 Installation Section Installation External Dimensions (Unit: mm) The following diagrams show the E5ZN with a Terminal Unit attached. UNIT UNIT BPS BPS POWER POWER ERROR ERROR SD/RD OUT1 OUT2 SUB1 SUB2 E5ZN SD/RD OUT1 OUT2 SUB1 SUB2 E5ZN E5ZN-SCT24S-500 Terminal Unit Note: Always use this basic E5ZN-SCT24S-500 Terminal Unit if using only one E5ZN Unit. E5ZN-SCT18S-500 Terminal Unit Note: Use the Expansion E5ZN-SCT18S-500 Terminal Unit for dense mounting with two or more Units. Use this Terminal Unit for all but the first Unit Assembling Units Joining Terminal Units Together Up to 15 Expansion E5ZN- SCT18S-500 Terminal Units can be connected to a basic E5ZN-SCT24S-500 Terminal Unit. Two Terminal Units can be connected by joining the side connector on each Terminal Unit. Side connectors 8

23 Installation Section 2-1 Attach a connector cover to the rightmost Terminal Unit. Connector cover Mounting to DIN Track Mounting the Unit Pull the hook down on the bottom, latch the top hook onto the track, push the Unit until the hook locks onto the track, and then push the hook back up to lock the Unit in place. (2) Latch the top hook onto the track (3) Push the Unit into place. (1) Lower the hook. (4) Lock the Unit in place. 9

24 Installation Section 2-1 Removing the Unit Use a flat-blade screwdriver to pull down the hook and lift the Unit from the bottom. Flat-blade screwdriver Mounting End Plates Always mount end plates to both ends of the E5ZN Temperature Controllers. up up up up For only one Temperature Controller For dense mounting of multiple Temperature Controllers 10

25 Installation Section 2-1 Mounting Bracket Mount the E5ZN Temperature Controller to DIN track. Use screws to attach the DIN track to the control panel in at least three places. PFP-50N (50 cm)/pfp-100n (100 cm) DIN Track Vertical: OK Horizontal: NG Position the DIN track vertical to the ground. Mounting the E5ZN Module Mounting the Module Line up the Module with the guides on the Terminal Unit and push firmly into place. Line up with guides and push firmly until the Module clicks into place. UNIT BPS POWER ERROR SD/RD OUT1 OUT2 SUB1 SUB2 Removing the Module Push the hooks on both ends of the Module and pull out the Module to remove it. UNIT BPS POWER ERROR SD/RD OUT1 OUT2 SUB4 SUB2 11

26 Installation Section 2-1 Covers When wiring, open the E53-COV12 Terminal Cover attached to the E5ZN- SCT24S-500 Terminal Unit or the E53-COV13 Terminal Cover attached to the E5ZN-SCT18S-500 Terminal Unit. When wiring has been completed, close the cover until it clicks shut. Both E5ZN-SCT24S-500 Terminal Units and E5ZN-SCT18S-500 Terminal Units have Terminal Covers. Terminals Covered Terminals Exposed 12

27 Using the I/O Section Section Using the I/O Section Terminal Arrangement + 19 Input power supply 24VDC - B(+) Setting Display Unit Communications A(-) 22 B(+) 23 Host communications RS A(-) E5ZN-SCT24S Refer to the E5ZN-SCT18S-500 for the layout for terminals 1 to mADC/ OUT1 0-20mADC OUT ch1 ch2 Analog-output type E5ZN-2C@F03@-FLK 4-20mADC/ 0-20mADC Event input SUB1 14 SUB Noncontact SUB2 SUB2 Contact input input COM COM + - PNP (sourcing) type E5ZN-2@P@03@-FLK CT2 ch2 16 CT1 ch Voltage-output type E5ZN-2Q@H03@-FLK Transistor-output type E5ZN-2T@H03@-FLK NPN (sinking) type E5ZN-2@N@03@-FLK VDC/ SUB3 0-5VDC - SUB VDC/ 0-5VDC Analog-output type (linear-voltage-output) E5ZN-2C@F03@-FLK E5ZN-SCT18S OUT1 8 - ch ch1 ch2 Thermocouple/infrared temperature sensor VDC 21mA OUT2 2 - ch2 Voltage-output type E5ZN-2Q@H03@-FLK ch1 Pt 12VDC 21mA ch2 7 OUT V V ch1 ch2 Analog input OUT2 ch1 ch2 Transistor-output type E5ZN-2T@H03@-FLK Precautions when Wiring Separate signal leads and power lines in order to protect the E5ZN and its lines from external noise. We recommend using solderless terminals when wiring the E5ZN. Tighten the terminal screws using a torque between 0.40 and 0.56 N m. Use the following type of solderless terminals for M3 screws. 5.8 mm max. 5.8 mm max. 13

28 Using the I/O Section Section Wiring Power Supply Inputs E5ZN-SCT24S E5ZN-SCT24S E5ZN-SCT18S-500 Note The left sides of the terminal numbers in the following diagram are on the outside of the Unit and the right sides are on the inside of the Unit. Connect to terminals 19 and 20, as shown in the following diagram. When reinforced insulation is required, connect the I/O to a device without an exposed charged section or to a device with basic insulation suitable for the maximum usage voltage of the I/O section. UL/CSA/CE Safety Standards Use a SELV power supply with an overcurrent protection function. A SELV power supply refers to a power supply with redundant I/O or with increased insulation and with an output voltage of 30 Vr.m.s and a 42.4-V peak or maximum 60 VDC. Recommended power supply: S82K CD (OMRON) or S8VS A (OMRON) To ensure the rating of Main terminal disturbance voltage for class A in EN61326, equip a noise filter (DENSEI-LAMBDA, MXB or equivalent one) to the DC power line as close to the temperature controller as possible. Connect channel 1 to terminals 10 to 12 and channel 2 to terminals 4 to 6 as follows, according to the input type: ch ch2 Thermocouple or infrared temperature sensor Connect the terminals or set the parameter according to the following instructions to prevent error indicators being lit for channels not being used. For upgraded pulse output models and analog output models: With any type of sensor, the parameter sensor error indicator used (initial setting level) can be used to prevent error indicators being lit for channels not being used. For the previous pulse output models (not upgraded): For thermocouple, infrared temperature sensor, or analog input: Form a short-circuit between terminals 5 and 6 when channel 2 is not used, or between terminals 11 and 12 when channel 1 is not used. For Pt: Connect a resistance of 100 to 125 Ω between terminals 4 and 5 when channel 2 is not used, or between terminals 10 and 11 when channel 1 is not used. Form a short-circuit between terminals 5 and 6 when channel 2 is not used and between terminals 11 and 12 when channel 1 is not used DC input power supply ch1 Pt ch2 V ch1 V + Analog input ch2 14

29 Using the I/O Section Section 2-2 Control Output 1/2 Terminals 7 and 8 are for control output 1 (OUT1) and terminals 1 and 2 are for control output 2 (OUT2) V +V mADC/ 4-20mADC/ OUT1 OUT2 OUT1 OUT2 OUT1 0-20mADC OUT2 0-20mADC 8 GND 2 GND E5ZN-SCT24S E5ZN-SCT18S-500 Control output 1 Control output 2 Pulse voltage output type E5ZN-2Q@H03@-FLK The following table shows the specifications for each output. Output Pulse voltage Transistor Control output 1 Control output 2 Transistor output type E5ZN-2T@H03@-FLK Control output 1 Control output 2 Analogue current output type E5ZN-2C@F03@-FLK Specifications 12 VDC output voltage ± 15% (PNP) Max. load current 21 ma, with short-circuit protection circuit Max. usage voltage 30 VDC, max. load current 100 ma. Max. residual voltage 1.5 V, max. leakage current 0.4 ma max. Current Current output range: 4 to 20 ma DC 0 to 20 ma DC Allowable load impedance: 350 Ω max. (See note.) Note A G32A-EA Cycle Control Unit (made by OMRON; internal load impedance: 352 Ω) can be used. The pulse voltage output (control output) is not electrically insulated from the internal circuits. When using grounded thermocouples, do not connect any of the control output terminals to the ground. If the terminals are connected to ground, unwanted current paths may result in incorrect temperature measurements. Auxiliary Outputs 1/2 Terminals 13 and 15 are for auxiliary output 1 (SUB1) and terminals 14 and 15 are for auxiliary output 2 (SUB2.) E5ZN-SCT24S SUB1 SUB COM PNP (sourcing) type E5ZN-2@P@03@-FLK SUB1 SUB2 The transistor output specifications are given below. Maximum applicable voltage: 30 VDC, maximum load current: 50 ma. Maximum residual voltage: 1.5 V, maximum leakage current: 0.4 ma COM NPN (sinking) type E5ZN-2@N@03@-FLK E5ZN-SCT18S

30 Using the I/O Section Section 2-2 CT Input CT input can be used with pulse output models only. When the heater burnout alarm is used, connect a current transformer (CT) across terminals 16 and 17 for channel 1 and terminals 16 and 18 for channel 2 (no polarity) E5ZN-SCT24S/18S CT1 CT2 ch1 17 ch2 18 Use E54-CT1 or E54-CT3 Current Transformers. Linear Voltage Output E5ZN-SCT24S/18S-500 Linear voltage output is allocated to auxiliary outputs 3 and 4 and can be used with analog output models only. Terminals 16 and 17 are for auxiliary output 3 (SUB3) and terminals 16 and 18 are for auxiliary output 4 (SUB4). SUB3 SUB DC1-5V/ DC0-5V DC1-5V/ DC0-5V Do not apply voltage to the linear voltage output terminals. Output Specifications Linear voltage output Voltage output range: 1 to 5 VDC 0 to 5 VDC Allowable load impedance: 10 kω min. 16 Event Input When event input is used, connect to terminals 3 and Contact input Non-contact input E5ZN-SCT24S/18S-500 Do not apply voltage to terminals 3 and 9. The inrush current that flows from E5ZN to the contact connected to terminals 3 and 9 is approx. 7 ma. Use event inputs under the following conditions: Contact input ON: 1 kω max., OFF: 100kΩ min. No-contact input ON: residual voltage of 1.5 V max., OFF: leakage current of 0.1 ma max. 16

31 Using the I/O Section Section 2-2 Communications When communicating with a host, connect across terminals 23 and RS-485 B(+) A( ) E5ZN-SCT24S-500 The RS-485 connection can be either one-to-one to one-to-n. Up to 16 Temperature Controllers can be connected in one-to-n systems. Keep the total cable length to 500 m maximum. Isolation The E5ZN terminals are electrically isolated in the blocks shown below. Voltage output model E5ZN-2Q@H03@-FLK Transistor output model E5ZN-2T@H03@-FLK G F A C F A C G F E D C F E D C C A B A E5ZN-SCT24S-500 E5ZN-SCT18S-500 B C A B A E5ZN-SCT24S-500 E5ZN-SCT18S-500 B Current output model E5ZN-2C@F03@-FLK G F A C F A C C A H Use shielded, twisted-pair cable (with wire sizes of AWG 28 or larger). Cable B E5ZN-SCT24S A H B E5ZN-SCT18S-500 AWG 28 or larger mm 2 or larger conductor cross-section 17

32 Using the I/O Section Section 2-2 Attach a terminator to both ends of the transmission path, including the host. The terminator specifications are as follows: Terminator 100 to 125 Ω (1/2 W) Use an RS-232C/RS-485 Converter when connecting personal computers with an RS-232C port. Recommended Adapter: K (OMRON) Recommend Interface Converter: K3SC (OMRON) (The K3SC is available in models with 100 VAC power supplies and models with 24 V, AC/DC power supplies. Specify the required type of power supply when ordering.) Adapter K RS-232C D-Sub, 9-pin (Straight, female-female) RS-232C/RS-485 Converter K3SC Terminator 100 to 125 Ω (1/2 W) 23 (B) 23(B) 24 (A) 24(A) E5ZN (No.0,1,2) E5ZN (No.3,4,5) 23(B) 24 (A) E5ZN (No.13,14,15) Terminator 100 to 125 Ω (1/2 W) When using an E5ZN-SDL Setting Display Unit, connect across terminals 21 and 22. Refer to Section 6 Using the E5ZN-SDL for information on how to use the Setting Display Unit. Setting Display Unit (E5ZN-SDL) B(+) A( )

33 Installation Precautions Section Installation Precautions Ensuring Prolonged Use Reducing the Influence of Noise Ensuring Precise Measurements Use the Temperature Controller in the following operating environment: Temperature: 10 to +55 C (with no icing or condensation) Humidity: 25% to 85% When the Temperature Controller is incorporated in a control panel, make sure that the Controller's ambient temperature (not the panel's ambient temperature) does not exceed 55 C. The life of electronic equipment like Temperature Controllers is influenced not only by the life determined by the relay switching count but also by the life of internal electronic components. The service life of components is dependent on the ambient temperature: The higher the ambient temperature becomes, the shorter the service life becomes, and vice versa. For this reason, the service life of the Temperature Controller can be extended by lowering its internal temperature. Mounting Temperature Controllers in any way other than the specified mounting method may cause heat to build up inside the Temperature Controllers, which will shorten their service life. If there is a possibility of the ambient temperature rising to a temperature above the specified temperature range, take steps, such as installing fans, to cool the E5ZN. Be sure that the cooling method in not cooling just the terminal block. If only the terminal block is cooled, measurement errors may occur. To reduce inductive noise, the leads on the Temperature Controller's terminal block must be wired separately from high-voltage/high-current power lines. Also, avoid wiring lines in parallel with or in the same wiring path as power lines. Other methods, such as separating conduits and wiring ducts or using shielded cables, are also effective. Attach a surge absorber or noise filter to peripheral equipment that generates noise (in particular, motors, transformers, solenoids, or other equipment that has a magnetic coil or other inductance component). When a noise filter is used at the power supply, first check the voltage or current, and attach the noise filter as close as possible to the Temperature Controller. Also, install the Temperature Controller as far away as possible from equipment that generates strong, high frequencies (e.g., high-frequency welders or high-frequency sewing machines) or surges. When the thermocouple leads are extended, be sure to use a compensating lead wire matched to the type of thermocouple. When the platinum resistance detector leads are extended, use a lead having the smallest resistance to equalize the resistance of the three leads. Mount to DIN track that has been installed vertical to the ground. If there is a large error in the measurement values, make sure that input compensation has been set correctly. 19

34 Installation Precautions Section Enclosure Ratings The enclosure ratings are shown in the following table. The E5ZN is not waterproof. Temperature Controller IP00 Module Terminal Units IP00 20

35 SECTION 3 Temperature Control Settings This section describes the basic functions of the E5ZN. 3-1 Setting the Input Type Input Type Selecting Centigrade/Fahrenheit Selecting PID Control or ON/OFF Control Setting Output Specifications Control Period Direct (Cooling)/Reverse (Heating) Operation Output Allocations Setting the SP Changing the SP Executing ON/OFF Control ON/OFF Control Setup Determining PID Constants: Autotuning and Manual Setup Autotuning Manual Setup Alarm Outputs Alarm Type Alarm Values Using Heater Burnout Alarm (HBA) HBA Detection Operating Conditions Calculating the Detection Current Value Starting and Stopping Control Starting Control (RUN)/Stopping Control (STOP) Operating Precautions

36 Setting the Input Type Section Setting the Input Type Input Type List of Input Types Set the input type corresponding to the sensor used. The E5ZN specifications support two types of inputs, platinum resistance thermometers and thermocouples. Refer to the following tables and set the correct value for the temperature range and the sensor used. To set the input type to a K thermocouple from 20.0 to C, use host communications or the E5ZN-SDL Setting Display Unit to set 1 as the set value for the input type. Type Input type Name Set Value Input Temperature Setup Range Platinum resistance thermometer input Platinum resistance thermometer Pt to 850 C or 300 to 1,500 F to C or to F to C or 0.0 to F JPt to C or to F to C or 0.0 to F Type Input type Name Set Value Input Temperature Setup Range Thermocouple Thermocouple K to 1,300 C or 300 to 2,300 F input to C or 0.0 to F J to 850 C or 100 to 1500 F 3 20 to C or 0.0 to F T to 400 C or 300 to 700 F to C or to F E 5 0 to 600 C or 0 to 1,100 F L to 850 C or 100 to 1,500 F U to 400 C or 300 to 700 F to C or to F N to 1,300 C or 300 to 2,300 F R 9 0 to 1,700 C or 0 to 3,000 F S 10 0 to 1,700 C or 0 to 3,000 F B to 1,800 C or 300 to 3,200 F Infrared temperature K10 to 70 C 12 0 to 90 C or 0 to 190 F sensor K60 to 120 C 13 0 to 120 C or 0 to 240 F ES1A K115 to 165 C 14 0 to 165 C or 0 to 320 F (K160 to 260 C) 15 0 to 260 C or 0 to 500 F Analog input 0 to 50 mv 16 One of the following ranges depending on the results of scaling: 1,999 to 9,999 or to Note The ES1A for K160 to 260 C has been discontinued. 22

37 Selecting Centigrade/Fahrenheit Section Selecting Centigrade/Fahrenheit Select either C or F as the temperature unit. Refer to the following table and select the value that corresponds to the desired temperature unit. The same temperature unit is used for both channel 1 and channel 2. To use C, use host communications and set 0 as the temperature unit or use the E5ZN-SDL Setting Display Unit and set c. Unit C 0 F 1 Default is 0. Setting 23

38 Selecting PID Control or ON/OFF Control Section Selecting PID Control or ON/OFF Control Either 2-PID control (PID control with two degrees of freedom) or ON/OFF control can be selected. The control method is selected by using host communications or the E5ZN-SDL Setting Display Unit to change the PID/OnOff parameter. Set the control method for channels 1 and 2 separately. Default is for PID control. 2-PID Control ON/OFF Control For PID control, the proportional band (P), integral time (I), and derivative time (D) parameters must be set. These PID constants can be set by autotuning or manual setup. In ON/OFF control, the control output is turned ON when the PV is lower than the current SP, and the control output is turned OFF when the PV is higher than the current SP (for reverse operation). 24

39 Setting Output Specifications Section Setting Output Specifications Control Period Set the output period (control period). Though a shorter period provides better control performance, we recommend setting the control period to 20 seconds or more when using a relay output for heater control (to increase the effective life of the relay). If necessary, readjust the control period according to the results of trial operation with the control period parameters set to their defaults. Use host communications or the E5ZN-SDL Setting Display Unit to set the heating control period and cooling control period parameters. Default is 2 s. The cooling control period parameter is used only in heating and cooling control. Set the control periods for channels 1 and 2 separately Direct (Cooling)/Reverse (Heating) Operation 100% Direct operation refers to control where the manipulated variable (MV) is increased for an increase in the PV (e.g.,cooling). Alternatively, reverse operation refers to control where the manipulated variable (MV) is decreased for an increase in the PV (e.g., heating). MV 100% MV 0% 0% Low temperature Set value High temperature Low temperature Set value High temperature Direct operation Reverse operation For example, when the PV (temperature) is lower than the SP (temperature) in a heating control system, the manipulated variable (MV) increases by the difference between the PV and the set value. Reverse operation is thus used in a heating control system and direct operation is used in a cooling control system. Use host communications or the E5ZN-SDL Setting Display Unit to set Direct/reverse operation to 0: Reverse or 1: Direct. Default is for reverse operation (heating). Set the direct/reverse operation for channels 1 and 2 separately. 25

40 Setting Output Specifications Section Output Allocations The E5ZN has four outputs. The following tables shows the default functions allocated to each output terminal. Name Set value Function Analog output models OUT1 (control output 1) Terminals 7 and 8 OUT2 (control output 2) Terminals 1 and 2 SUB1 (auxiliary output 1) Terminals 13 and 15 SUB2 (auxiliary output 2) Terminals 14 and 15 Pulse output models E5ZN-2Q@H03@-FLK E5ZN-2T@H03@-FLK 0 ch1 Heating control output ch1 Heating control output 1 Cooling control output (See note.) Cooling control output (See note.) 2 Alarm 1 and sensor error alarm OR output Alarm 1 and sensor error alarm OR output 3 Alarm 2 output Alarm 2 output 4 Alarm 3 output Alarm 3 output 5 ch2 Heating control output ch2 Heating control output 6 Cooling control output (See note.) Cooling control output (See note.) 7 Alarm 1 and sensor error alarm Alarm 1 and HB alarm OR output OR output 8 Alarm 2 output Alarm 2 output 9 Alarm 3 output Alarm 3 output 10 ch1 SP transfer output 11 Ramp SP transfer output 12 PV transfer output 13 Heating MV transfer output 14 Cooling MV transfer output 15 ch2 SP transfer output 16 Ramp SP transfer output 17 PV transfer output 18 Heating MV transfer output 19 Cooling MV transfer output 0 to 19 (9) Same as above. Same as above. 5 ch2 Heating control output ch2 Heating control output 0 ch1 Heating control output ch1 Heating control output 1 Cooling control output (See note.) Cooling control output (See note.) 2 Alarm 1 and sensor error alarm Alarm 1 and HB alarm OR output OR output 3 Alarm 2 output Alarm 2 output 4 Alarm 3 output Alarm 3 output 5 ch2 Heating control output ch2 Heating control output 6 Cooling control output (See note.) Cooling control output (See note.) 7 Alarm 1 and sensor error alarm Alarm 1 and HB alarm OR output OR output 8 Alarm 2 output Alarm 2 output 9 Alarm 3 output Alarm 3 output 0 to 9 Same as above. Same as above. 7 ch2 Alarm 1 and sensor error alarm OR output ch2 Alarm 1 and HB alarm OR output Note When Cooling control output for ch 1 has been set for an output, ch 1 performs heating/cooling control. When Cooling control output for ch 2 has been allocated to the output, ch 2 performs heating/cooling control. 26